thanks for being with us. now booktv continues. so the first of all increasingly women's identities are tied to their work in a way which me might not like and we may find disturbing and unnatural but it is in fact true. when i look at some one like mercer mayor who was recently chosen to be the ceo of yahoo! when she was visibly pregnant and then was asked you now how much maternity leave do you want to take and she said basically none. the fact that such women exist, it's not the way i would do it. i took plenty of maternity leave i feel like that is a growing -- that is the kind of woman that there can be space for in the fact that there are some stay at home dad's who are set happy stay-at-home dads and they don't all entirely live in portland oregon, that's okay too. [applause] >> thank you so much for that very kind introduction. it's a pleasure to be here. robert e. lee surrendered is for most americans a familiar tablet. the two men met in the house of will mclean and a modest hamlet of appomattox courthouse. the war of fin